Knots to Meters per second Converter

Converting knots to meters per second is a multiplication by a fixed factor: 1 kn = 0.5144444 m/s. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.

Because one knot works out to 0.5144444 m/s, the meter per second is the smaller unit of the two: a figure given in meter per second always carries a smaller number than the same measurement in knot. A chart drawn in kn can hide that, so check which label the axis uses before you compare two readings.

Driving and sport are the everyday sources of this pair: a dashboard reading in knots against a speed limit posted in meters per second, or a training plan written in one while a device reports the other.

The conversion factor used here is 0.5144444 m/s per knot (7 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 kn a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 1.943844 kn per m/s, the exact reciprocal, so a round trip through both pages returns your original number.

Knots to Meters per second formula

Use this formula to convert any knot value to meters per second:

m/s = kn × 0.5144444

Worked example: 100 kn × 0.5144444 = 51.44444 m/s.

Knots to Meters per second conversion table

Knots (kn)Meters per second (m/s)
0.5 kn0.2572222 m/s
1 kn0.5144444 m/s
2 kn1.028889 m/s
5 kn2.572222 m/s
10 kn5.144444 m/s
20 kn10.28889 m/s
50 kn25.72222 m/s
100 kn51.44444 m/s
500 kn257.2222 m/s
1000 kn514.4444 m/s

How to convert knots to meters per second

Multiply the knot value by 0.5144444 to get the equivalent in meters per second. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.

If you need the opposite direction, use the Meters per second to Knots converter instead of dividing by hand; both pages use the same source factors. For every other kn conversion in one place, see the kn conversion hub.

Frequently asked questions

How many meters per second are in 1 knot?
1 knot = 0.5144444 m/s.

What is 100 knots in meters per second?
100 kn = 51.44444 m/s.

Is converting knots to meters per second the same as meters per second to knots?
No — the direction changes the multiplier. The reverse conversion (1 m/s = 1.943844 kn) is on the Meters per second to Knots page.

Related conversions

Try the ConvBolt Unit Converter for any other speed unit, browse the Speed conversions, or read our conversion guides.